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{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/VTAWNCLQIDEDNCXAMOX57S7HTLNAVJ3V/?format=api", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api", "message_id": "[email protected]", "message_id_hash": "VTAWNCLQIDEDNCXAMOX57S7HTLNAVJ3V", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/S7R4WZ4BEUY5PDZB7UH742QWT2JBMGR2/?format=api", "sender": { "address": "wouterweg (a) gmail.com", "mailman_id": null, "emails": null }, "sender_name": "Wouter Weggelaar", "subject": "[amsat-bb] Re: Status DO-64?", "date": "2008-09-27T12:36:21Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/YY5IYQIXWPOS63IY4JWQ6JKZIXNG4NVV/?format=api", "children": [], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Hi all,\n\nThe attitude of Delfi-C3 is changing slowly. The attitude with respect\nto your station defines the polarization of the up- and downlink\nsignal, so this could lead to a change of polarization needed to\nuplink into Delfi.\nPlease also try to uplink if the downlink seems weak, because the\nuplink might be very good at that time.\nNeedless to say that when using circular polarized beams, you should\nbe able to change between LHCP and RHCP, but the mentioned stations\nall have that capability to my knowledge.\n\nWhen I get back to the Delfi-C3 groundstation I'll try a pass myself.\n\nRegards,\n\nWouter Weggelaar\nPA3WEG\nDelfi-C3 Team\n\nOn Sat, Sep 27, 2008 at 2:12 PM, OZ1MY <[email protected]> wrote:\n> Hi Mak,\n> Yes I have made QSOs as well. Last time was 9th of September.\n> In the start of the life of the transponder it was much easier.\n>\n> I do not know what is different - but one thing could be the\n> attitude of DO-64. If that is the course I would expect the\n> effect to change from orbit to orbit ?\n>\n> One thing that is sure is that it is on the receive side.\n> Even without a preamplifier I can hear the noise floor\n> of the transponder.\n> May be something has gone wrong - only time will show.\n>\n> Perhaps someone from Delfts knows ?\n>\n> 73 OZ1MY\n> Ib\n> ----- Original Message -----\n> From: \"SV1BSX\" <[email protected]>\n> To: <[email protected]>\n> Sent: Saturday, September 27, 2008 1:04 PM\n> Subject: [amsat-bb] Re: Status DO-64?\n>\n>\n>> Hi Ib,\n>>\n>> tks for reply and informative note. However I wondering about the DO-64 !\n>> If you \"shoot\" the satellite with 2x19 el and 70 W, I suppose the ERP from\n>> a similar system is 2-3 KWatts.\n>> In case you had not easy access to satellite with this power, I wondering\n>> what is changed, as I remember that during the first weeks of\n> transponder's\n>> activation the satellite was accessible, even if somebody was using\n>> 200-300 Watts ERP (that is my max power and I managed a lot of QSOs).\n>>\n>> Anyway, too bad if the satellite-uplink is not enough sensitive any\n> longer.\n>> I can't imagine ....5-10 KW ERP uplink-power for a good enough access.\n>> This way is a non-usable object for the majority of amateur satellite\n>> operators.\n>>\n>> 73, Mak SV1BSX\n>>\n>>\n>>\n>>\n>> ----- Original Message -----\n>> From: \"OZ1MY\" <[email protected]>\n>> To: \"SV1BSX\" <[email protected]>; <[email protected]>\n>> Cc: <[email protected]>\n>> Sent: Saturday, September 27, 2008 12:46 PM\n>> Subject: Re: [amsat-bb] Re: Status DO-64?\n>>\n>>\n>> > Hi Mak and Rob,\n>> > I just had a pass here over Copenhagen with\n>> > max elevation of 86 degrees.\n>> > I were able to hear myself using 70 W to my\n>> > normal 2x19 element antenna - but very faint.\n>> > I also heard a CW station.\n>> > Conclusion - it is on but very difficult to use unless\n>> > you have a lot of power for the uplink (more than I have).\n>> > Have a nice weekend all\n>> > 73 OZ1MY\n>> > Ib\n>> > ----- Original Message -----\n>> > From: \"SV1BSX\" <[email protected]>\n>> > To: <[email protected]>\n>> > Sent: Saturday, September 27, 2008 11:33 AM\n>> > Subject: [amsat-bb] Re: Status DO-64?\n>> >\n>> >\n>> >> Hi Rob,\n>> >>\n>> >> I agree. Today morning I tried at 08:02 - 08:10Z, Orbit #2252,\n>> > excellent\n>> >> pass\n>> >> for my location.\n>> >>\n>> >> As you pointed out, I also heard the beacon with a true 559 on CW (Hi\n>> >> Hi\n>> >> DELFI-C3),\n>> >> however it was impossible to access the transponder.\n>> >>\n>> >> So, your note is correct.\n>> >>\n>> >> 73, Mak SV1BSX\n>> >>\n>> >>\n>> >>\n>> >> ----- Original Message -----\n>> >> From: \"Rob Hardenberg PE1ITR\" <[email protected]>\n>> >> To: <[email protected]>\n>> >> Sent: Saturday, September 27, 2008 11:13 AM\n>> >> Subject: [amsat-bb] Status DO-64?\n>> >>\n>> >>\n>> >> > Hi All,\n>> >> >\n>> >> > Er there station making qso's on DO-64? Last 2 weeks I tried serveal\n>> > times\n>> >> > but I can't hear my\n>> >> > signal on the transponder. It looks like the transponder receiver is\n>> >> > not\n>> >> > working. I can hear the\n>> >> > beacon and transponder noise very well.\n>> >> >\n>> >> >\n>> >> > 73 Rob PE1ITR\n>> >> > http://www.pe1itr.com\n>> >> >\n>> >> > _______________________________________________\n>> >> > Sent via [email protected]. Opinions expressed are those of the\n>> >> > author.\n>> >> > Not an AMSAT-NA member? Join now to support the amateur satellite\n>> > program!\n>> >> > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n>> >>\n>> >>\n>> >> _______________________________________________\n>> >> Sent via [email protected]. Opinions expressed are those of the\n> author.\n>> >> Not an AMSAT-NA member? Join now to support the amateur satellite\n>> >> program!\n>> >> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n>> >>\n>> >\n>> >\n>>\n>>\n>> _______________________________________________\n>> Sent via [email protected]. Opinions expressed are those of the author.\n>> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n>>\n>\n>\n> _______________________________________________\n> Sent via [email protected]. Opinions expressed are those of the author.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n>\n", "attachments": [] }